Instant Pot Minestrone Soup is a classic Italian soup loaded with vegetables, beans, pasta, and lots of flavor! When you make this pressure cooker minestrone soup, clean out that vegetable drawer in the fridge! This is a versatile and tasty soup recipe!
Before you begin the cooking process, have all of your ingredients ready to go. Chop your veggies, open the cans, rinse the beans, measure the spices, etc. This will make the process go smoother since there is a lot of prep.
Turn on the pot's Sauté setting. When the pot is hot, add the olive oil. Then add in the onion and the bay leaves and cook, stirring occasionally, until onions start to turn translucent.
Add the garlic and cook for about 20 seconds, stirring constantly, or until it is fragrant.
Add the carrots, celery, oregano, basil, rosemary, salt, and pepper. Stir.
Pour in the chicken broth, parmesan rind, if using, kidney beans, and garbanzo beans. Stir.
Pour in diced tomatoes and crushed tomatoes. Do not stir.
Spoon the tomato paste on top. Gently press to submerge it, but do not stir (tomatoes burn easily, so this method helps prevent that).
Place the lid on the pot and set the steam release knob to the Sealing position.
Cancel the Sauté setting.
Press the Pressure Cook/Manual button or dial, then the +/- button or dial to select 5 minutes. High Pressure. The pot will take about 10-15 minutes to come to pressure as this is a very full pot.
When the cook cycle has finished. Let the pot sit undisturbed for 15 minutes (15 minute Natural Release). Then do a controlled Quick Release of the pressure. *A controlled quick release means you release the steam in short bursts, then longer bursts, until you can be sure none of the sauce spews out of the vent with the steam from the intense pressure. Then fully open the vent and let it go.
When the pin in the lid drops down, open the lid and carefully stir the soup.
Turn the Sauté setting back on and add in the zucchini and pasta. Put a glass lid on, or a silicone lid to keep the heat in so it comes to a simmer faster. Take off the lid when it starts to simmer (there is a chance that it won't simmer, but the pasta will still cook as it is very hot).
The zucchini and pasta will cook in 5 to 10 minutes, depending on the type of pasta, and how thinly you cut the zucchini.
Add the drained can of green beans and let them heat through.
Stir in the parmesan.
Garnish with some fresh basil leaves, more parmesan, and serve hot with nice crusty bread.